[jhersh]

Because the RSL and the relay outputs are on the same SPI chain, we continue shifting out all of that data and rely on the output enable signal of the shift register to disable the relays. As Eric suggested, your output enable signal seems to be damaged or shorted in that sidecar.

In retrospect, I should have been more paranoid and not only used the output enable signal but also zeroed out the relay data. Oh well... something to fix next year I guess.

-Joe